The shank is electrically conducted to the metal workpiece through the chuck and table,
the LED lights up and the beeper sounds(only for 6566-3E),
when the ball touches the workpiece
Not suitable for rotary use. Hardened shank and contact ball
Hardened shank and contact ball

3M 54135, Scotch-Brite Roloc AL Surface Conditioning Disc TR, 2 in x NH A VFN, 7100075708, 200 per case
Insize 4809, U.S. STAND SHEET METAL GAGE, 0-36(.3125~.0070"), 6928640330162
Dynabrade 94991 1/4" Female Composite-Style Coupler with 1/4" Female Plug Assembly
Dynabrade 94980 1/4" Composite-Style Coupler, 1/4" Male
Dynabrade 95676 1/4" Female Coupler with 1/4" Male Plug Assembly
3M 30687, Cloth Belt 577F, 36 YF-weight, 3/4 in x 18 in, Fabri-lok, Single-flex, 7010308881, 200 per case 